A decibel (dB) is a unit used to measure the intensity of sound or the strength of a signal on a logarithmic scale. It compares two values, such as input versus output, in audio, video, or electrical systems.
For example, in surveillance setups, dB values help assess signal loss over long cable distances. Understanding decibel levels allows technicians to maintain video clarity and audio performance.
While small changes in dB may seem minor, they can significantly impact system quality. Therefore, accurate measurement plays a key role in reliable security infrastructure.
By monitoring dB levels, professionals ensure optimal signal strength and overall system efficiency.